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4 connector pinouts – FUJITSU MHZ2250BJ User Manual

Page 81

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5.1 Physical Interface

5.1.4 Connector pinouts

The pin definitions are shown in Table 5.1.

Table 5.1 Connector pinouts

Signal segment key

S1 Gnd

2nd

mate

S2 A+

S3 A-

Differential signal pair A from Phy
Connected to TXD at the host side.
Connected to RXD at the device side.

S4 Gnd

2nd

mate

S5 B-

S6 B+

Differential signal pair B from Phy
Connected to RXD at the host side.
Connected to TXD at the device side.

Signal segment

S7 Gnd

2nd

mate

"Key and spacing separate signal and power segments"

P1 V33

N.C.(Open)

P2 V33

N.C.(Open)

P3 V33

N.C.(Open)

P4 Gnd

1st

mate

P5 Gnd

2nd

mate

P6 Gnd

2nd

mate

P7

V5

5 V power, pre-charge, 2nd mate

P8

V5

5 V power

P9

V5

5 V power

P10 Gnd

2nd

mate

P11 Staggered

Spin-up
Mode/
Activity
LED

• Staggered Spin-up mode detect for input
• Activity LED drive for output
For the specification of P11, see Section 5.1.5.
(in next page)

When the host system does not use these
functions, the corresponding pin to be mated
with P11 in the power cable receptacle
connector shall be grounded.

P12 Gnd

1st mate

P13 V12

N.C.(Open)

P14 V12

N.C.(Open)

Power segment

P15 V12

N.C.(Open)

Power segment key

Notes:

Note) Since applying a single external supply voltage of 5 V enables this

drive to operate it is unnecessary to supply +3.3 V and +12 V
power supplies.

C141-E280

5-7

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